For those on a budget, search for this book's ISBN on Abe Books. This edition looks like it's available for around $30, plus or minus. I suppose shipping would

For those on a budget, search for this book's ISBN on Abe Books. This edition looks like it's available for around $30, plus or minus. I suppose shipping would make this somewhat less attractive in Brasil, but probably still better. Abe Books sells used books, as well as international editions. YMMV on the legality of the international editions.